diff --git a/app/assets/stylesheets/application.css b/app/assets/stylesheets/application.css
index 17610708..fc1f50e7 100644
--- a/app/assets/stylesheets/application.css
+++ b/app/assets/stylesheets/application.css
@@ -73,10 +73,22 @@ a {
   text-decoration:none;
 }
 
+/*
+ * Utility
+ */
+
 .clearfloat {
   clear:both;
 }
 
+.hidden {
+  display: none;
+}
+
+/*
+ * Layout stuffs
+ */
+
 .new_session, 
 .new_user,
 .new_map,
diff --git a/app/views/layouts/_nodeinfo.html.erb b/app/views/layouts/_nodeinfo.html.erb
new file mode 100644
index 00000000..fb41da0d
--- /dev/null
+++ b/app/views/layouts/_nodeinfo.html.erb
@@ -0,0 +1,5 @@
+<script type="text/javascript">
+  //create a global array we can fill with id's of loaded nodes
+  var loaded_nodes = new Array();
+</script>
+<div id="loaded_nodes" class="hidden"></div>
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index 4e99c171..2c28686a 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -60,5 +60,6 @@
     
   <% end %>
   <%= render :partial => 'layouts/ga' if Rails.env.production? %>
+  <%= render :partial => 'layouts/nodeinfo' %>
 </body>
-</html>
\ No newline at end of file
+</html>